Chemical and spatial differentiation of syringyl and guaiacyl lignins in poplar wood via time-of-flight secondary ion mass spectrometry.
Identifieur interne : 002F59 ( Main/Exploration ); précédent : 002F58; suivant : 002F60Chemical and spatial differentiation of syringyl and guaiacyl lignins in poplar wood via time-of-flight secondary ion mass spectrometry.
Auteurs : Chuanzhen Zhou [États-Unis] ; Quanzi Li ; Vincent L. Chiang ; Lucian A. Lucia ; Dieter P. GriffisSource :
- Analytical chemistry [ 1520-6882 ] ; 2011.
Descripteurs français
- KwdFr :
- MESH :
- analyse : Lignine.
- composition chimique : Fullerènes, Paroi cellulaire, Populus, Tiges de plante.
- méthodes : Spectrométrie de masse d'ions secondaires.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Lignin.
- chemical , chemistry : Fullerenes.
- chemistry : Cell Wall, Plant Stems, Populus.
- methods : Spectrometry, Mass, Secondary Ion.
Abstract
As a major component in plant cell walls, lignin is an important factor in numerous industrial processes, especially in wood saccharification and fermentation to biofuels. The ability to chemically differentiate and spatially locate lignins in wood cell structures provides an important contribution to the effort to improve these processes. The spatial distribution of the syringyl (S) and guaiacyl (G) lignins, both over larger regions and within a single cell wall, on poplar ( Populus trichocarpa ) wood cross-sections was determined via time-of-flight secondary ion mass spectrometry (ToF-SIMS). This is the first time that direct chemically specific mass spectrometric mapping has been employed to elucidate the spatial distribution of S and G lignins. In agreement with results obtained by UV microscopy, ToF-SIMS images clearly show that the guaiacyl lignin is predominantly located in the vessel cell walls of poplar wood while syringyl lignin is mainly located in the fiber cell walls. The G/S ratio in vessel cell walls was determined to be approximately twice that found in fiber cell walls. A combination of Bi ToF-SIMS spectral image acquisition and C(60) sputtering provided the ability to attain the combination of spatial resolution and signal-to-noise necessary to determine the distribution of S and G lignins in a single cell wall. By this technique, it was possible to demonstrate that more guaiacyl lignin is located in the middle lamella layer and more syringyl lignin is located in the inner cell wall area.
DOI: 10.1021/ac200903y
PubMed: 21851065
Affiliations:
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Chiang</name></author><author><name sortKey="Lucia, Lucian A" sort="Lucia, Lucian A" uniqKey="Lucia L" first="Lucian A" last="Lucia">Lucian A. Lucia</name></author><author><name sortKey="Griffis, Dieter P" sort="Griffis, Dieter P" uniqKey="Griffis D" first="Dieter P" last="Griffis">Dieter P. 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The ability to chemically differentiate and spatially locate lignins in wood cell structures provides an important contribution to the effort to improve these processes. The spatial distribution of the syringyl (S) and guaiacyl (G) lignins, both over larger regions and within a single cell wall, on poplar ( Populus trichocarpa ) wood cross-sections was determined via time-of-flight secondary ion mass spectrometry (ToF-SIMS). This is the first time that direct chemically specific mass spectrometric mapping has been employed to elucidate the spatial distribution of S and G lignins. In agreement with results obtained by UV microscopy, ToF-SIMS images clearly show that the guaiacyl lignin is predominantly located in the vessel cell walls of poplar wood while syringyl lignin is mainly located in the fiber cell walls. The G/S ratio in vessel cell walls was determined to be approximately twice that found in fiber cell walls. A combination of Bi ToF-SIMS spectral image acquisition and C(60) sputtering provided the ability to attain the combination of spatial resolution and signal-to-noise necessary to determine the distribution of S and G lignins in a single cell wall. By this technique, it was possible to demonstrate that more guaiacyl lignin is located in the middle lamella layer and more syringyl lignin is located in the inner cell wall area.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">21851065</PMID><DateCompleted><Year>2012</Year><Month>01</Month><Day>25</Day></DateCompleted><DateRevised><Year>2012</Year><Month>11</Month><Day>15</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1520-6882</ISSN><JournalIssue CitedMedium="Internet"><Volume>83</Volume><Issue>18</Issue><PubDate><Year>2011</Year><Month>Sep</Month><Day>15</Day></PubDate></JournalIssue><Title>Analytical chemistry</Title><ISOAbbreviation>Anal Chem</ISOAbbreviation></Journal><ArticleTitle>Chemical and spatial differentiation of syringyl and guaiacyl lignins in poplar wood via time-of-flight secondary ion mass spectrometry.</ArticleTitle><Pagination><MedlinePgn>7020-6</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1021/ac200903y</ELocationID><Abstract><AbstractText>As a major component in plant cell walls, lignin is an important factor in numerous industrial processes, especially in wood saccharification and fermentation to biofuels. The ability to chemically differentiate and spatially locate lignins in wood cell structures provides an important contribution to the effort to improve these processes. The spatial distribution of the syringyl (S) and guaiacyl (G) lignins, both over larger regions and within a single cell wall, on poplar ( Populus trichocarpa ) wood cross-sections was determined via time-of-flight secondary ion mass spectrometry (ToF-SIMS). This is the first time that direct chemically specific mass spectrometric mapping has been employed to elucidate the spatial distribution of S and G lignins. In agreement with results obtained by UV microscopy, ToF-SIMS images clearly show that the guaiacyl lignin is predominantly located in the vessel cell walls of poplar wood while syringyl lignin is mainly located in the fiber cell walls. The G/S ratio in vessel cell walls was determined to be approximately twice that found in fiber cell walls. A combination of Bi ToF-SIMS spectral image acquisition and C(60) sputtering provided the ability to attain the combination of spatial resolution and signal-to-noise necessary to determine the distribution of S and G lignins in a single cell wall. 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Chiang</name><name sortKey="Griffis, Dieter P" sort="Griffis, Dieter P" uniqKey="Griffis D" first="Dieter P" last="Griffis">Dieter P. Griffis</name><name sortKey="Li, Quanzi" sort="Li, Quanzi" uniqKey="Li Q" first="Quanzi" last="Li">Quanzi Li</name><name sortKey="Lucia, Lucian A" sort="Lucia, Lucian A" uniqKey="Lucia L" first="Lucian A" last="Lucia">Lucian A. Lucia</name></noCountry><country name="États-Unis"><noRegion><name sortKey="Zhou, Chuanzhen" sort="Zhou, Chuanzhen" uniqKey="Zhou C" first="Chuanzhen" last="Zhou">Chuanzhen Zhou</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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